NPE on clicking Launch button in Settings Tab

[kereis]

When in Settings tab, everytime you click on Launch, a NullPointerException occurs:
Unhandled exception in Thread[AWT-EventQueue-0,6,main]: java.lang.NullPointerException

This happens on v1.4.17. It's unknown whether it affects older versions or not.

Reproduction steps:

1. Open Linux/Java launcher
2. Switch to Settings tab
3. If you have a valid profile, click on Launch button.
4. Check logs.

If contributions are welcome, I can take a look at that issue.

[kereis]

This issues has already existed in the past. See issue #475

[progwml6]

can you get us the full log? I would like to try to fix this before 1.5.0 goes out

[kereis]

Here is the stacktrace:

[ERROR] LaunchFrame.doLaunch:922->Main$1.uncaughtException:105: Unhandled exception in Thread[AWT-EventQueue-0,6,main]: java.lang.NullPointerException
net.ftb.gui.LaunchFrame.doLaunch(LaunchFrame.java:922)
net.ftb.gui.LaunchFrame$6.actionPerformed(LaunchFrame.java:246)
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
java.awt.Component.processMouseEvent(Component.java:6539)
javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
java.awt.Component.processEvent(Component.java:6304)
java.awt.Container.processEvent(Container.java:2239)
java.awt.Component.dispatchEventImpl(Component.java:4889)
java.awt.Container.dispatchEventImpl(Container.java:2297)
java.awt.Component.dispatchEvent(Component.java:4711)
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
java.awt.Container.dispatchEventImpl(Container.java:2283)
java.awt.Window.dispatchEventImpl(Window.java:2746)
java.awt.Component.dispatchEvent(Component.java:4711)
java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
java.awt.EventQueue.access$500(EventQueue.java:97)
java.awt.EventQueue$3.run(EventQueue.java:709)
java.awt.EventQueue$3.run(EventQueue.java:703)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
java.awt.EventQueue$4.run(EventQueue.java:733)
java.awt.EventQueue$4.run(EventQueue.java:731)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

[progwml6]

are you able to launch the game at all?

[kereis]

Yes you can. You just need to switch away from Settings/Options tab.